python - 模块未找到错误: No module named 'pip._vendor.urllib3' after update pip3

Question

当我在 Linux 下使用 pip 时，我得到:

ModuleNotFoundError: No module named 'pip._vendor.urllib3'

$ pip3 -V

...

ModuleNotFoundError: No module named 'pip._vendor.urllib3'

我的/usr/bin/pip3:

#!/usr/bin/python3
# GENERATED BY DEBIAN

import sys

# Run the main entry point, similarly to how setuptools does it, but because
# we didn't install the actual entry point from setup.py, don't use the
# pkg_resources API.
from pip import __main__
if __name__ == '__main__':
    sys.exit(__main__._main())

Answer 1

安装或升级 pip3 时，某些东西似乎“损坏”了。

尝试重新安装:

$ sudo apt-get remove python3-pip
$ sudo apt-get install python3-pip
$ python3 -m pip install --upgrade pip
$ python3 -m pip -V
pip 18.1 from /usr/local/lib/python3.7/site-packages/pip (python 3.7)